In calculating the mean of grouped data grouped in classes of equal width we may use the formula whe...

Question

In calculating the mean of grouped data grouped in classes of equal width we may use the formula where a is the assumed mean a must be one of the midpoints of the classes Is the last statement correct

Accepted Answer

No the statement is not correct It is not necessary that assumed mean should be the mid point of the class interval a can be considered as any value which is easy to simplify it

NCERT Exemplar Solutions Class 10 Mathematics Solutions for Statistics and Probability - Exercise 13.2 in Chapter 13 - Statistics and Probability